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A new type of pressure screen

A new type of pressure screen technology, applied in textile and papermaking, fiber raw material processing and other directions, can solve the problems of bolts falling into the pressure screen easily, time-consuming and labor consumption, loss, etc., so as to improve the pulping effect and reduce power. Consume and strengthen the effect of slag discharge capacity

Active Publication Date: 2022-04-01
ZHENGZHOU LEIZHAN TECH PAPER MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this installation method has the following two disadvantages: one is that during the maintenance process, it is necessary to dismantle and install the fixing bolts, which consumes a lot of time and manpower
Second, during the process of installing and removing the bolts, the bolts are easy to fall into the inside of the pressure screen, causing immeasurable losses

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0042] Such as Figure 1 to Figure 11 As shown, a new type of pressure screen in this embodiment includes a pressure screen housing 31, a pressure screen upper cover 32 is fixed on the upper end of the pressure screen housing 31, and a slurry feeding pipe 33 is provided on the pressure screen upper cover 32. A screen drum 10 is fixed inside the pressure screen housing 31, and the screen drum 10 is fixed on the pressure screen housing 31 through a screen drum installation structure. A slurry outlet pipe 34 is provided on the pressure screen housing 32 corresponding to the bottom of the screen drum. A rotor 35 is provided inside the screen drum 31 .

[0043] The rotor 35 includes a rotor cylinder 27, and the outer periphery of the rotor cylinder 27 is evenly layered with several fin fixing rods 26, which are divided into several layers, and each layer is evenly distributed in the circumferential direction, and rotor blades are installed at the ends of the fin fixing rods. Shee...

Embodiment 2

[0079] The rotor blade 23 in this embodiment is used for the updraft screen, and the range of the included angle 16 is -(12°-18°).

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Abstract

The invention discloses a novel pressure screen, which comprises a pressure screen shell. A screen drum is fixed inside the pressure screen shell. A rotor is arranged inside the screen drum. The rotor includes a rotor cylinder, and several A wing fixing rod, which is divided into several layers, and each layer is evenly distributed in the circumferential direction, and a rotor blade is installed at the end of the blade fixing rod, and the rotor blade is a flying airfoil structure; the rotor blades of two adjacent layers are connected to each other overlap by a distance. The present invention greatly reduces the power consumption of the rotor during the working process through the more streamlined structure and arrangement of the rotor blades, and at the same time has a good screening effect.

Description

technical field [0001] The invention relates to the technical field of papermaking equipment, in particular to a novel pressure screen. Background technique [0002] In the papermaking process, the screening and purification of pulp is an important process to improve the quality of paper. It often takes two or even three screening procedures to screen out most of the impurities in the pulp. In the current papermaking equipment, the pressure screen is the main equipment to perform this process, and the rotor is the core component of the pressure screen. [0003] The rotor structure of the pressure screen is usually on the surface of a cylinder or a cantilever rod, with several regularly arranged rotor blades. Relying on the positive pressure and negative pressure formed on the surface of the rotor blade in the process of high-speed rotation. When the rotor blades generate positive pressure, the slurry is pressed to the screen drum, forcing the qualified fibers and water in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21D5/02D21D5/16
CPCD21D5/16D21D5/02
Inventor 刘建涛刘建坡赵永超
Owner ZHENGZHOU LEIZHAN TECH PAPER MACHINERY
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